Astronomy Telescope 💯

An astronomical telescope's performance is primarily defined by two factors: and resolution , both of which depend on the size of the objective lens or mirror (aperture).

: A mechanism, such as a rack and pinion focuser , used to adjust the distance between the eyepiece and objective to sharpen the image. Astrophotography Equipment | Ultimate Beginners Guide astronomy telescope

: The main optical element that collects light. Larger apertures allow for the observation of fainter objects. astronomy telescope